CF = Calculated Fee (grazing fee) is the estimated economic value of livestock grazing, defined by the Congress as fair market value (FMV) of the forage;
$1.23 = The base economic value of grazing on public rangeland established by the 1966 Western Livestock Grazing Survey;
FVI=Forage Value Index means the weighted average estimate of the annual rental charge per head per month for pasturing cattle on private rangelands in the 11 Western States (Montana, Idaho, Wyoming, Colorado, New Mexico, Arizona, Utah, Nevada, Washington, Oregon, and California) (computed by the National Agricultural Statistics Service from the June Enumerative Survey) divided by $3.65 and multiplied by 100;
BCPI=Beef Cattle Price Index means the weighted average annual selling price for beef cattle (excluding calves) in the 11 Western States (Montana, Idaho, Wyoming, Colorado, New Mexico, Arizona, Utah, Nevada, Washington, Oregon, and California) for November through October (computed by the National Agricultural Statistics Service divided by $22.04 per hundred weight and multiplied by 100; and
PPI=Prices Paid Index means the following selected components from the National Agricultural Statistics Service's Annual National Index of Prices Paid by Farmers for Goods and Services adjusted by the weights indicated in parentheses to reflect livestock production costs in the Western States: 1. Fuels and Energy (14.5); 2. Farm and Motor Supplies (12.0); 3. Autos and Trucks (4.5); 4. Tractors and Self-Propelled Machinery (4.5); 5. Other Machinery (12.0); 6. Building and Fencing Materials (14.5); 7. Interest (6.0); 8. Farm Wage Rates (14.0); 9. Farm Services (18.0).
43 C.F.R. §4130.8-1